CSR-20 & CSR-40, September 1999
Unit Description Unit Illustrations 2-11
Control Box — Door Open
1. Condenser Fan Contactor
2. Evaporator Fan Low Speed Contactor
3. Power Module
4. Control Transformer
5. Thermo Bus Tap
6. Output Module
7. Emergency Bypass Module
8. Remote Monitor Option Relays; 4-Pin plug is located on side of control box
9. Unit On/Off Switch
10. Data Retrieval Receptacle (located on bottom of control box on some models)
11. Thermistor Lead Option
12. Main Circuit Breaker
13. CBA Phase Contactor
14. ABC Phase Contactor
15. Current Transformer
16. Compressor Contactor
17. Heater Contactor
18. Evaporator Fan High Speed Contactor
19. µP-D Controller
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
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